#hi{
position:absolute;
 /*top:50px; */
left:20px;  
width:470px;
/* 
padding: 4px 4px 4px 4px; 上右下左 
 border-bottom: dotted 1px;
 border-top: dotted 1px;
 border-left: dotted 1px;
 border-right: dotted 1px;
*/
}
#mi{
position:absolute;
 /*top:50px; */
left:500px;  
width:470px;
}

#k{
position:absolute;
 top:5px; 
left:900px;  

}